Lock.



J'. H. WILKINS. LQGK. APPLICATION FILED JULY 23,1908.

956,561 Patented May 3, 1910.

JOHN H. WILKINS, OF NEWARK, NEW JERSEY.

LOCK.

Specication of 'Letters Patent.

Patented May 3, 1910.

Application filed July 23, 1908. Serial No. 444,936.

To all 'whom it may concer/n:

Be it known that I, JOHN H. WrLKINs, a citizen of the United States,residing at Newark, in the county of Essex and State of New Jersey, haveinvented certain new and useful Improvements in Locks, of which thefollowing is a specification, reference being had therein to theaccompanying drawing.

My invention relates to improvements in fastening means and lockingdevices and has particular reference to a lock in which the latch uponcoming in Contact with the nosing of the door j amb causesthdintroduction of a bolt into the door jamb.

Referring to the accompanying drawings Figure 1 is a plan view of thelock and nosing with the cover of the lock removed and showing the latchextended outwardly engaging the nosing. Fig. 2 is a similar view withoutthe nosing and showing the latch adapted to engage the nosing prior tothe projection of the bolt, and Fig. 3 is a section on the line 3 3 ofFig. 2 showing the position of the various parts viewed from below line3 3.

4 is the frame work which may be of any suitable construction providedwith a proj ection 6 into which the end 7 of the latch 11 has itsbearing, said latch being provided with a spiral spring or othersuitable resilient material 8 adapted to hold it normally in theposition shown in Figs. 2 and 3.

9 is a tumbler provided with a spring 10 and adapted to be engaged bythe shoulder 11a of the latch 11 so that as the latch 11 is pressedinwardly into the lock the tumbler 9 is forced upwardly against theaction of the spring 10. 12 is another tumbler on. top of the tumbler 9also provided with a spring or other suitable resilient material such as10 and provided with a projection 13 adapted to engage the opening 14 inthe bolt 15. The bolt 15 may be held in the position shown in Fig. 1 bythe spring 16 mounted upon the 18 is a slide having a pin bearing 19engaging the tumbler 20 provided with a projection 21 adapted to engagethe cam bearing 22 in the underlying tumbler 12. This slide is alsoprovided with an enlargement or projection 23 adapted to be engaged bythe lever 24 when the same is operated upon the pin 25.

26 is the bearing of a suitable knob or handle such as 27 and engagesthe tumbler 2() which provides bearing for the tumbler 12 so that byturning said knob, the tumbler 20 is rotated upon the bearing 26 andlifts the tumbler 12 from the bolt 15 thereby throwing the slide 18shown in Figs. 1 and 2 rightwardly. From this it will be seen that asthe latch, which. may be in the position shown in Fig. 2, encounters thenosing, it is thrown inwardly raising the tumbler 9 out of engagementwith the top of the bolt thereby disengaging the same against the actionof the spring 16 which throws said bolt out and into the socket of thenosing as shown in Fig. 1 in which position it is locked by theprojection 13 of the tumbler 12. While the bolt is in this position vthelatch 11 remains back in the lock in which position it is held by thenosing on the door jamb thus allowing the door to be opened as soon asthe bolt 15 is drawn back.

In opening the door from the inside the knob 27 may be turned so as tothrow the tumbler 20 to the back of the lock to engage the laterallyprojecting wing 28 of the bo t 15 drawing said bolt into the lock andout of engagement with the nosing. While in this position the slide 30provided with button 31 may be shot up and into the opening 32 of theslide 18 thereby holding the bolt within the lock and allowing the latch11 to be operated independently of the other parts. When the door is tobe opened from the outside a suitable key is inserted into a dogcylinder or other suitable attachment 29 so as to engage the lever 24which is turned thereby and engages the projection 23 of the slide 18which in turn engages the projection 28 of the bolt 15 withdrawing itout of engagement with the nosing as before stated and the latch 11being held within the lock by virtue of its contact with the nosingallows the door now to be readily opened.

Of course it will be readily understood that various modications may bemade without departing from the spirit of the invention.

Having described my invention, what I claim as new, and desire to secureby Letters Patent, is:

1. In a locking device, a latch adapted to be operated when said deviceis being used, a spring actuated bolt held within said device by atumbler, a shoulder upon said latch adapted to operate said tumbler andrelease said bolt when said latch is operated, a second tumbler adaptedto engage and hold said bolt in its projected position and a thirdtumbler having sliding bearing within said second tumbler and means foroperating said third tumbler whereby said second tumbler is disengagedfrom said bolt and the same is withdrawn.

2. In a looking device, a latch adapted to be operated when said deviceis being used, a spring aotuated bolt held within said device by atumbler. a shoulder upon said latch adapted to operate said tumbler vandrelease said bolt when said latch is operated, a second tumbler adaptedto engage and hold said bolt in its projected position and a thirdtumbler having a projection engaging a curved slot within said secondtumbler and means for operating said third tumbler whereby said secondtumbler is disengaged from said bolt and thev same is withdrawn, andmeans for locking said bolt in its withdrawn position.

3. ln a locking device, a spring actuated latch adapted to he operatedwhen said device is being used, a spring actuated bolt held within saiddevice by a spring actuated tumbler, a shoulder upon said latch adaptedto operate said tumbler and release said bolt when said latch isoperated, a second spring actuated tumbler adapted to engage and holdsaid bolt in its projected position and a third tumbler engaging anirregular opening within said second tumbler and means for operatingsaid third tumbler whereby said second tumbler may be disengaged by keyor knob from said bolt and the same withdrawn.

In testimony whereof I aiiiX my signature in presence of two Witnesses.

JOHN H. VILKINS.

Witnesses LOUISE ENDERLE, THOMAS A. HILL.

